Usually this doesn't come up as an ideal purchase, but since you're already so stocked..the FN 5.7 is worth investigating.

There are a ton of guns you don't have that I'd like to have, but they might not suit your tastes. Sig P239, P210, SA XDm, Ruger Single 6 (22lr/22wmr), SA EMP, G20/29, and maybe some smaller subsompact options come to mind. At the top of my list would be a BHP or a CZ 75. But you've already tied yourself to the Beretta 92, which is a similar platform that may fit you better.

Does anyone have experience with the Berretta PX4 carbine ? I know It's not classified a handgun but It's something I never owned and left hand friendly and thinking it would make a fun choice for range ..